Compra Bitcoin(BTC)

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Preço estimado
1 BTC ≈ 0,00 USD
Bitcoin
BTC
Bitcoin
$78 717,9
-1,31%
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Como comprar Bitcoin(BTC) com USD?

Introduzir Montante
Selecione o par de negociação BTC/USD e introduza o montante da compra.
Confirmar ordem
Reveja os detalhes da transação, incluindo o preço BTC/USD, taxas e outras notas. Uma vez confirmada, submeta a ordem.
Receba Bitcoin(BTC)
Após o pagamento bem sucedido, o BTC adquirido vai ser automaticamente creditado na sua carteira Gate.com.

Como comprar Bitcoin(BTC) com cartão de crédito ou cartão de débito?

  • 1
    Criar a sua conta Gate.com e verificar a sua identidadePara comprar BTC em segurança, comece por se inscrever numa conta Gate.com e concluir a verificação da identidade KYC para proteger as suas transações.
  • 2
    Escolha BTC e método de pagamentoAceda à seção "Comprar Bitcoin(BTC)", selecione BTC, introduza o montante que pretende comprar e escolha cartão de débito como opção de pagamento. Em seguida, preencha os dados do seu cartão.
  • 3
    Receba BTC instantaneamente na sua carteiraDepois de confirmar a ordem, o BTC que comprar vai ser creditado de forma instantânea e segura na sua carteira Gate.com — pronto para ser negociado, guardado ou transferido.

Porquê comprar Bitcoin(BTC)?

O que é Bitcoin? O nascimento do ouro digital descentralizado
A Bitcoin (BTC) foi introduzida em 2008 por Satoshi Nakamoto e lançada oficialmente em 2009 como a primeira criptomoeda descentralizada do mundo. Permite pagamentos eletrónicos peer-to-peer sem intermediários como bancos ou governos. Todas as transações são registadas numa blockchain pública, garantindo transparência e segurança.
Como é que a Bitcoin funciona? Consenso PoW e tecnologia de blockchain
A Bitcoin funciona com um mecanismo de consenso de Prova de Trabalho (PoW). Quando Alice quer enviar 1 BTC para Bob, os mineradores competem para resolver problemas matemáticos complexos. O primeiro a resolvê-lo ganha novos bitcoins como recompensa do bloco e regista a transação na blockchain. Este sistema assegura a segurança da rede, mas resulta num elevado consumo de energia e numa maior dificuldade de extração.
Oferta de Bitcoin e mecanismo de halving
A oferta de Bitcoin está estritamente limitada a 21 milhões de moedas, o que a torna absolutamente escassa. De quatro em quatro anos, um evento de "halving" reduz a recompensa do bloco para os mineradores, abrandando a criação de novas bitcoins. Isto reforça as propriedades anti-inflacionárias da Bitcoin e é um fator chave para a valorização do seu preço a longo prazo. Até ao final de 2024, foram extraídas mais de 19,7 milhões de bitcoins.
Histórico de preços e impacto no mercado
A Bitcoin começou praticamente sem valor, atingindo $20,000 in 2017 and hitting new highs above $60 000 em 2021. Tem registado uma volatilidade extrema - como o famoso "Bitcoin Pizza Day", que marcou a sua primeira utilização comercial. Apesar de, no passado, ter sido considerada uma bolha ou uma fraude, a crescente adoção institucional e generalizada fez com que o seu valor de mercado ultrapassasse 1 bilião de dólares.
Razões e riscos para investir em Bitcoin
Proteção contra a inflação e armazenamento de valor: a oferta fixa e os eventos de redução para metade fazem da Bitcoin um ouro digital e um potencial ativo de refúgio seguro. Alta liquidez: a BTC é negociada em todas as principais exchanges, permitindo uma fácil alocação de carteira. Descentralização e autonomia: não é controlada por uma única entidade; os utilizadores têm controlo total sobre os seus ativos. Técnica e riscos regulamentares: elevada volatilidade, regulamentos pouco claros, preocupações ambientais decorrentes da exploração mineira e utilidade de pagamento limitada.
Pontos de vista céticos e perspetivas alternativas
Apesar da sua natureza revolucionária, a eficiência da Bitcoin como instrumento de pagamento é baixa e os riscos regulamentares continuam a ser significativos. Alguns especialistas veem a Bitcoin mais como um ativo especulativo do que como uma reserva de valor estável. Os investidores devem avaliar cuidadosamente a sua tolerância ao risco.

Bitcoin(BTC) Preço atual e Tendências de mercado

BTC/USD
Bitcoin
$78 717,9
-1,31%
Mercados
Popularidade
Capitalização de mercado
#1
$1,58T
Volume
Oferta de circulação
$446,54M
20,07M

Atualmente, a Bitcoin (BTC) tem um preço de $78 717,9 por moeda. A oferta em circulação é de aproximadamente 20 075 412 BTC, resultando numa capitalização de mercado total de $20,07M, Classificação atual da capitalização de mercado: 1.

Nas últimas 24 horas, o volume de negociação do Bitcoin atingiu $446,54M, representando um -1.31% em comparação com o dia anterior. Na semana passada, o preço do Bitcoin +20.38%, refletindo a procura contínua de BTC como ouro digital e uma proteção contra a inflação.

Além disso, o máximo histórico da Bitcoin foi $126 080. A volatilidade do mercado continua a ser significativa, pelo que os investidores devem acompanhar de perto as tendências macroeconómicas e os desenvolvimentos regulamentares.

Bitcoin(BTC) Comparar com outras criptomoedas

BTC VS
BTC
em massa
Variação percentual de 24h
Alteração de 7d por cento
Volume de negociações 24h
Capitalização de mercado
Classificação de mercado
Oferta circulante

O que se segue depois de comprar Bitcoin(BTC)?

À vista
Negoceie em BTC a qualquer altura utilizando a vasta gama de pares de negociação da Gate.com, aproveite as oportunidades de mercado e aumente os seus ativos.
Simple Earn
Utilize o seu BTC ocioso para subscrever os produtos financeiros flexíveis ou a prazo fixo da plataforma e ganhar facilmente um rendimento extra.
Converter
Troque rapidamente BTC por outras criptomoedas com facilidade.

Vantagens de comprar Bitcoin através de Gate

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Mais wiki sobre BTC

As últimas notícias sobre Bitcoin(BTC)

26-08-2026 42:14Gate News
贝莱德已处理价值50亿美元的比特币实物转换ETF交易,并将最低交易金额降至100万美元
26-08-2026 37:14Gate News
Strive 斥资 8150 万美元购入 1110 枚 BTC,成为公开上市公司中第七大比特币持有者
26-08-2026 32:14Gate News
比特币飙升23%,创下逾三年来最大单周涨幅,财政部提案被视为催化剂
26-08-2026 31:14Gate News
美国比特币 ETF 今日流入 4,038 BTC;以太坊 ETF 增持 75,150 ETH
26-08-2026 17:14Gate News
黄金ETF GLD和比特币ETF IBIT重返成交量最高的十大ETF之列;半导体ETF于8月26日下跌
Mais notícias sobre BTC
After five consecutive shorts yesterday, the pullback reached the target zone and Duo Dan entered, with the morning position netting 780 points. The provided level was exactly right. Sun Dan was also announced during this period, and every level provided is determined through a combined analysis of multiple K-line indicators, as explained clearly in the livestream. Once it matches the trend, Fan Cang—doubling the account—is effortless.
YangDongxuDiscusses,
26-08-2026 47:14
After five consecutive shorts yesterday, the pullback reached the target zone and Duo Dan entered, with the morning position netting 780 points. The provided level was exactly right. Sun Dan was also announced during this period, and every level provided is determined through a combined analysis of multiple K-line indicators, as explained clearly in the livestream. Once it matches the trend, Fan Cang—doubling the account—is effortless.
ETH
-1,31%
BTC
-1,59%
The hand that set the stop-loss a few days ago trembled slightly; this morning I realized that filial piety was unnecessary, really.
A few days ago, before bed, I took one last look at $LIT. Funds were quietly entering, and large buy orders occasionally appeared on the order book. At that time, I felt the bottom was nearly in. I set a defensive level before bed, but unexpectedly, it was just a false alarm. Sure enough, as soon as the market opened today, it was quite accommodating this time: the price moved straight up, leaving me no chance to retest. I immediately flagged the long opportunity, with an entry around 1.180. It has now risen to 3.204, delivering an +8262.2% return. This move has provided the answer.
The sleepless nights weren't in vain🍗—this piece of meat tastes great. The move was cleaner than expected. I first took profit on 80%, putting most of the gains in my pocket, and moved the stop-loss on the remaining 20% to the entry price for protection. If it keeps surging, let the bullets fly for a while; if it really pulls back, the profits won't turn into pain. I imagine the brothers on board must have woken up laughing, right?
The premise of compounding is staying alive; the shortcut to getting rich overnight is often going to zero. Don't let profits inflate, and don't despair over drawdowns.
Now is not the time to chase. I'll alert you immediately when a more comfortable entry appears in the next round. There are still plenty of opportunities, so don't rush—chasing orders makes it easy to get hit. Let's wait for good news.
$BTC $SNDK
LingfengTalksTrends
26-08-2026 43:14
The hand that set the stop-loss a few days ago trembled slightly; this morning I realized that filial piety was unnecessary, really. A few days ago, before bed, I took one last look at $LIT. Funds were quietly entering, and large buy orders occasionally appeared on the order book. At that time, I felt the bottom was nearly in. I set a defensive level before bed, but unexpectedly, it was just a false alarm. Sure enough, as soon as the market opened today, it was quite accommodating this time: the price moved straight up, leaving me no chance to retest. I immediately flagged the long opportunity, with an entry around 1.180. It has now risen to 3.204, delivering an +8262.2% return. This move has provided the answer. The sleepless nights weren't in vain🍗—this piece of meat tastes great. The move was cleaner than expected. I first took profit on 80%, putting most of the gains in my pocket, and moved the stop-loss on the remaining 20% to the entry price for protection. If it keeps surging, let the bullets fly for a while; if it really pulls back, the profits won't turn into pain. I imagine the brothers on board must have woken up laughing, right? The premise of compounding is staying alive; the shortcut to getting rich overnight is often going to zero. Don't let profits inflate, and don't despair over drawdowns. Now is not the time to chase. I'll alert you immediately when a more comfortable entry appears in the next round. There are still plenty of opportunities, so don't rush—chasing orders makes it easy to get hit. Let's wait for good news. $BTC $SNDK
$BTC  ‌
THE LIQUIDITY CYCLE MAY BE TURNING BACK ON.
One of the most important macro signals for global markets is flashing a major change: US M2 money supply has reached roughly $23.16 trillion, with annual growth accelerating to around 5.6%.
That is the fastest pace in roughly four years.
This matters because liquidity is the background fuel behind financial markets. When the quantity of money expands, more capital can eventually find its way into equities, commodities, real estate and scarce assets such as gold and Bitcoin.
But there is an important distinction:
More liquidity does not automatically mean every asset goes higher.
The real question is where that liquidity flows.
For years, quantitative tightening created a restrictive environment. That dynamic has now changed. With the Federal Reserve no longer shrinking its balance sheet and liquidity operations supporting banking reserves, financial conditions are becoming considerably more constructive.
The macro backdrop is therefore shifting from liquidity withdrawal toward liquidity expansion.
And markets are already reacting.
Gold is near $4,674, up roughly 39.9% year over year.
Bitcoin is around $78,900, with a weekly gain of approximately 22.8%.
$ETH  ‌
Ethereum is near $2,461, while Solana is around $97.
The broader crypto market has recovered toward approximately $2.74 trillion.
Yet the most interesting part is not the current rally.
It is the potential next phase.
GLOBAL LIQUIDITY IS THE BIGGER PICTURE.
Global M2 across major economies has reached approximately $103.3 trillion.
If US liquidity continues expanding while the dollar remains softer, Treasury yields stabilize and money velocity keeps recovering, the environment could become increasingly supportive for hard assets and risk markets.
But Bitcoin's history gives us a warning.
M2 can rise while Bitcoin falls.
That happened during parts of 2025 and early 2026, when liquidity expanded but capital flowed more heavily toward gold, equities and defensive assets.
So the equation is not:
M2 ↑ = BTC ↑
The real equation is:
Liquidity + Demand + Capital Flows + Risk Appetite = Sustainable Rally
That distinction is critical.
For Bitcoin, ETF inflows, institutional accumulation and genuine market demand remain essential confirmation signals.
For gold, central-bank purchases, de-dollarization trends and lower real yields continue to strengthen the structural case.
For equities, expanding liquidity can support valuations, but elevated prices leave them vulnerable to inflation and rate surprises.
THE RISK IS TIMING.
Bitcoin has already moved more than 20% in a week, while the Fear and Greed Index is around 81, showing extreme optimism.
That combination can produce powerful continuation — but it can also produce violent corrections.
A liquidity-driven bull market does not move in a straight line.
The three indicators I would watch most closely are:
1. US M2 growth
2. 10-year Treasury yield
3. Bitcoin and Ethereum ETF flows
If M2 keeps accelerating, Treasury yields remain contained and institutional crypto inflows continue, the medium-term setup becomes increasingly constructive.
But if liquidity growth stalls, yields spike, or ETF demand weakens, markets could quickly become less forgiving.
My view is therefore medium-term bullish, short-term cautious.
The liquidity tide is turning favorable, but that does not eliminate volatility.
Gold may continue benefiting from the current monetary regime, while Bitcoin and major crypto assets could offer greater percentage upside if institutional demand catches up with expanding liquidity.
The key is not to chase a green candle simply because M2 is rising.
Liquidity creates the environment.
Demand creates the move.
Risk management determines who survives it.
The next major market phase may already be developing — and the smartest positioning will come from watching the liquidity data before the crowd fully reacts.
[@Gate_Square](gt://mention/UlVAVVpbAwsO0O0O)  
#USM2MoneySupplyGrowthHitsFourYearHigh
SoominStar
26-08-2026 26:14
$BTC ‌ THE LIQUIDITY CYCLE MAY BE TURNING BACK ON. One of the most important macro signals for global markets is flashing a major change: US M2 money supply has reached roughly $23.16 trillion, with annual growth accelerating to around 5.6%. That is the fastest pace in roughly four years. This matters because liquidity is the background fuel behind financial markets. When the quantity of money expands, more capital can eventually find its way into equities, commodities, real estate and scarce assets such as gold and Bitcoin. But there is an important distinction: More liquidity does not automatically mean every asset goes higher. The real question is where that liquidity flows. For years, quantitative tightening created a restrictive environment. That dynamic has now changed. With the Federal Reserve no longer shrinking its balance sheet and liquidity operations supporting banking reserves, financial conditions are becoming considerably more constructive. The macro backdrop is therefore shifting from liquidity withdrawal toward liquidity expansion. And markets are already reacting. Gold is near $4,674, up roughly 39.9% year over year. Bitcoin is around $78,900, with a weekly gain of approximately 22.8%. $ETH ‌ Ethereum is near $2,461, while Solana is around $97. The broader crypto market has recovered toward approximately $2.74 trillion. Yet the most interesting part is not the current rally. It is the potential next phase. GLOBAL LIQUIDITY IS THE BIGGER PICTURE. Global M2 across major economies has reached approximately $103.3 trillion. If US liquidity continues expanding while the dollar remains softer, Treasury yields stabilize and money velocity keeps recovering, the environment could become increasingly supportive for hard assets and risk markets. But Bitcoin's history gives us a warning. M2 can rise while Bitcoin falls. That happened during parts of 2025 and early 2026, when liquidity expanded but capital flowed more heavily toward gold, equities and defensive assets. So the equation is not: M2 ↑ = BTC ↑ The real equation is: Liquidity + Demand + Capital Flows + Risk Appetite = Sustainable Rally That distinction is critical. For Bitcoin, ETF inflows, institutional accumulation and genuine market demand remain essential confirmation signals. For gold, central-bank purchases, de-dollarization trends and lower real yields continue to strengthen the structural case. For equities, expanding liquidity can support valuations, but elevated prices leave them vulnerable to inflation and rate surprises. THE RISK IS TIMING. Bitcoin has already moved more than 20% in a week, while the Fear and Greed Index is around 81, showing extreme optimism. That combination can produce powerful continuation — but it can also produce violent corrections. A liquidity-driven bull market does not move in a straight line. The three indicators I would watch most closely are: 1. US M2 growth 2. 10-year Treasury yield 3. Bitcoin and Ethereum ETF flows If M2 keeps accelerating, Treasury yields remain contained and institutional crypto inflows continue, the medium-term setup becomes increasingly constructive. But if liquidity growth stalls, yields spike, or ETF demand weakens, markets could quickly become less forgiving. My view is therefore medium-term bullish, short-term cautious. The liquidity tide is turning favorable, but that does not eliminate volatility. Gold may continue benefiting from the current monetary regime, while Bitcoin and major crypto assets could offer greater percentage upside if institutional demand catches up with expanding liquidity. The key is not to chase a green candle simply because M2 is rising. Liquidity creates the environment. Demand creates the move. Risk management determines who survives it. The next major market phase may already be developing — and the smartest positioning will come from watching the liquidity data before the crowd fully reacts. [@Gate_Square](gt://mention/UlVAVVpbAwsO0O0O) #USM2MoneySupplyGrowthHitsFourYearHigh
BTC
-1,59%
ETH
-1,31%
Mais publicações sobre BTC

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As respostas às Perguntas Frequentes são geradas pela IA e são fornecidas apenas para referência. Avalie cuidadosamente o conteúdo.
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